The 20-TPI leadscrew added to avoid working in MM.

Adding the Lead-screw upgrade

Adding the 20-TPI leadscrew is not difficult, but as you are probably new to the machine, the dis-assembly of the table and saddle may be a bit daunting at first. The instructions provided by The Little Machine Shop (LMS) are (if dated) quite adequate, and not a hard job.

Here is the mill column off the base. Air spring done; next is the base and lead screw replacements (X & Y).

Adding the Lead-screw upgrade

Mill Leadscrew

Base, Saddle and inverted table

Here the mill base and saddle can be seen, with the table inverted on the right.

Base, Saddle and inverted table

Mill Leadscrew

Re-assembly of table and column

With the X & Y leadscrews replaced, now the machine goes onto it's table. I found a 17" length of 2"x10" makes the perfect base to raise the table adequately to clear the hand-wheels.